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TPS40197 Datasheet Preview

TPS40197 Datasheet

6-A Buck Controller

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TPS40197
SLUS886B – NOVEMBER 2008 – REVISED JUNE 2019
TPS40197 4.5-V to 14-V Input, 6-A Buck Controller
With Four-Bit VID Interface
1 Features
1 Input Voltage Range: 4.5 V to 14 V
• 4-Bit Dynamic VID-On-The-Fly Support
• VID Programmable Output Voltage with
Programmable Transition Rate
• Fixed Switching Frequency of 520 kHz
• Selectable Low-Side (Three Settings) and Fixed
High-Side Thermally Compensated Overcurrent
Protection
• Power Good Indicator
• Internal 5-V Regulator
• Voltage Mode Control
• Internally Fixed 5.5-ms Soft-Start Time
• Prebias Output Safe
• Thermal Shutdown at 140°C
• 16-Pin QFN Package
2 Applications
• Smart-Reflex™ DSPs
• POL Modules
• Telecom
3 Description
The TPS40197 is a synchronous buck controller that
operates from 4.5 V to 14 V input supply nominally.
The controller implements voltage-mode control
architecture with the switching frequency fixed at
520 kHz. The higher switching frequency facilitates
the use of smaller inductor and output capacitors,
thereby providing a compact power-supply solution.
An adaptive anti-cross conduction scheme is used to
prevent shoot through current in the power FETs.
The TPS40197 integrates the PWM control and 4-bit
VID interface in a single chip to allow seamless on-
the-fly VID changes with programmable transition
rate. It provides a simple power solution for Smart-
Reflex™ DSP cores.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS40197
VQFN (16)
4.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
SD
V
OUT
VID3
VID2
VID1
VID0
HOST
V
IN
1
VID1
2 VID0
16
VID2
VID3 15
3 REF
HDRV 14
4 EN
SW 13
TPS40197
5 FB
BOOT 12
6 COMP
7 VDD
PGOOD
8
LDRV 11
BP 10
GND
9
VIN
V
OUT
UDG-08100
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

TPS40197 Datasheet Preview

TPS40197 Datasheet

6-A Buck Controller

No Preview Available !

TPS40197
SLUS886B – NOVEMBER 2008 – REVISED JUNE 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description Continued .......................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Package Dissipation Ratings .................................... 5
7.5 Electrical Characteristics........................................... 6
7.6 Typical Characteristics .............................................. 8
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 13
9 Application and Implementation ........................ 19
9.1 Application Information............................................ 19
9.2 Typical Application ................................................. 19
10 Device and Documentation Support ................. 21
10.1 Device Support...................................................... 21
10.2 Documentation Support ........................................ 21
10.3 Receiving Notification of Documentation Updates 21
10.4 Community Resources.......................................... 21
10.5 Trademarks ........................................................... 21
10.6 Electrostatic Discharge Caution ............................ 21
10.7 Glossary ................................................................ 22
11 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (July 2012) to Revision B
Page
• Editorial changes only; no technical revision.......................................................................................................................... 1
Changes from Original (November 2008) to Revision A
Page
• Added a new paragraph to the Enable section .................................................................................................................... 13
2
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Product Folder Links: TPS40197
Copyright © 2008–2019, Texas Instruments Incorporated


Part Number TPS40197
Description 6-A Buck Controller
Maker etcTI
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TPS40197 Datasheet PDF






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